Although the Rev1 did not arrived yet, I ordered Rev2 boards today. The main advantage is that the new boards can be chained. I ordered them in china at dirtypcbs.com. They do allow you to make small panels. And that is something I wanted to try out out for some time time. I Hope this will work:

Normally the shipping and handling is slow. So there will be enough time to test an improve the library with the rev1 boards.